News - SUZHOU LIZHU MACHINERY CO., LTD

This high-quality cross-border cooperation case focuses on how Suzhou Lizhu Machinery's customized dual-station vertical injection molding machine, enhanced vertical insert molding machine and intelligent constant-pressure energy-saving hydraulic system solve precision inconsistency, low automation and high energy consumption pain points for a leading precision electronic accessories manufacturer in Northern Vietnam.

As a high-tech manufacturer focusing on R&D, customized production and overseas turnkey solutions of vertical molding equipment, Suzhou Lizhu Machinery specializes in non-standard vertical injection molding machine customization for electronic insert molding, automotive parts, household hardware and new energy accessories industries. Up to now, Suzhou Lizhu Machinery has provided stable, high-precision vertical molding machine production solutions for hundreds of processing enterprises in Southeast Asia, realizing intelligent and low-consumption upgrading of traditional molding production lines.

The cooperative customer is a long-established precision electronic OEM factory located in Bac Ninh, Vietnam, mainly engaged in mass production of electronic terminal inserts, connector embedded parts, electrical hardware fasteners and household appliance insulated plastic accessories. Benefiting from the rapid gathering of Vietnam's electronic manufacturing industry, the enterprise has undertaken a large number of long-term fixed orders for international electronic brands. However, the factory's original ordinary vertical molding equipment had been used for many years, unable to adapt to the micron-level precision standards of electronic precision parts and large-scale continuous production demands, resulting in multiple production bottlenecks restricting enterprise development.

The old production line had three core intractable problems. First, the traditional vertical injection molding machine adopted ordinary structural frames, with poor mold locking stability during long-term operation. Electronic tiny metal inserts were prone to position deviation, leading to defective products such as plastic wrapping voids, uneven glue thickness and burr residues, with the overall product defective rate reaching 15.8%, causing massive waste of precision hardware materials and increasing order rework costs. Second, the old equipment lacked intelligent process adjustment modules, relying entirely on manual experience to adjust injection parameters. The inconsistent molding parameters led to unstable product consistency and low qualified product rate, failing to meet international brand quality inspection standards. Third, the traditional hydraulic system had high energy consumption and slow response speed, with long molding cycle and low production efficiency. Long-hour operation led to frequent oil leakage and equipment failure, high-frequency shutdown maintenance seriously affected continuous production progress.

To completely upgrade the production line and solve long-term quality and efficiency problems, the customer screened and investigated dozens of Chinese vertical injection molding machine manufacturers through industry exhibitions and cross-border supplier platforms. After comprehensive comparison of equipment precision, technical strength, overseas service and cost performance, the customer finally signed a strategic cooperation agreement with Suzhou Lizhu Machinery, purchasing multiple sets of customized dual-station vertical injection molding machine and upgraded vertical insert molding machine for full-line equipment replacement and intelligent transformation.

Aiming at the ultra-precision molding characteristics of electronic embedded parts and the customer's demand for high-efficiency continuous production, the professional technical team of Suzhou Lizhu Machinery customized a exclusive full-set precision molding solution. The customized vertical injection molding machine is equipped with Suzhou Lizhu Machinery's self-developed high-precision mold locking calibration system and reinforced rigid frame structure, achieving stable mold locking force and accurate insert positioning, thoroughly solving the defect of offset and uneven wrapping of tiny electronic inserts. The built-in intelligent digital parameter adjustment module of Suzhou Lizhu Machinery's vertical molding machine can automatically optimize injection speed, holding pressure and cooling time according to product specifications, ensuring consistent molding quality of each workpiece and greatly reducing manual adjustment errors.

The dual-station design of Suzhou Lizhu Machinery's vertical insert molding machine realizes alternate feeding and molding, effectively saving material loading and mold opening and closing waiting time, significantly improving production efficiency. Matched with Suzhou Lizhu Machinery's upgraded energy-saving constant-pressure hydraulic molding system, the equipment runs more smoothly with lower operation noise and power consumption, and the failure rate of long-term heavy-load operation is reduced to the minimum, perfectly adapting to the 24-hour uninterrupted mass production mode of electronic processing factories.

After completing cross-border delivery, on-site equipment installation, mold debugging and professional operation training guided by Suzhou Lizhu Machinery's overseas after-sales team, the new production line was officially put into full-load operation. After two months of stable operation, the production data achieved comprehensive breakthrough optimization: the defective rate of electronic precision accessories dropped from 15.8% to below 2.6%, the single-piece molding cycle was shortened by 23%, the workshop overall production capacity increased by more than 26%, and the unit energy consumption of equipment decreased significantly.

The customer's production director spoke highly of Suzhou Lizhu Machinery's customized vertical molding equipment and professional overseas service. He said that Suzhou Lizhu Machinery's vertical injection molding machine and vertical insert molding machine have excellent precision, stable performance and high automation degree, which completely solves the quality instability and low-efficiency pain points of electronic insert molding production, effectively improves product qualification rate and order delivery efficiency, and enhances the enterprise's international market competitiveness.

At present, the customer's upgraded production line has been running stably for several months. The two parties have reached long-term cooperative intention, and the customer plans to continue to purchase Suzhou Lizhu Machinery's vertical molding machine equipment to expand production capacity. Suzhou Lizhu Machinery always focuses on the core production pain points of global processing enterprises, continuously optimizes vertical injection molding machine core technology and intelligent molding solutions, and provides one-stop services including non-standard customization, pre-sales scheme design, cross-border delivery, on-site commissioning and lifelong after-sales maintenance. We welcome global manufacturers to contact Suzhou Lizhu Machinery to obtain exclusive high-precision and high-efficiency insert molding solutions.